.WB_global_nav {
position: fixed;
_position: absolute;
top: 0;
left: 0;
z-index: 9999;
width: 100%;
height: 48px;
border-top: 2px solid #fa7d3c;
box-shadow: 0 0 1px 0px rgba(0,0,0,0.15);
background: #fff;
}
.gn_header {
position: relative;

height: 48px;
margin: 0 auto;
}
.gn_logo {
float: left;
position: relative;
width: 140px;
height: 48px;}

.WB_frame {
width: 1000px;
min-height: 680px;
margin: 0 auto;
padding: 16px 0 0 0;
}